ALEXANDRIA, Va., March 19 -- United States Patent no. 12,253,606, issued on March 18, was assigned to PIXART IMAGING INC. (Hsin-Chu, Taiwan).
"Distance measuring method and apparatus" was invented by Guo-Zhen Wang (Hsin-Chu, Taiwan) and Ming-Tsan Kao (Hsin-Chu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a distance measuring method and a distance measuring apparatus. During the distance measuring, an image is obtained. If the location of a center of gravity of the image is within a first segment, the calculating unit calculates a distance between the object and the distance measuring apparatus corresponding to the projection point, according to a first mapping relationship and the loc...